Make GPS Tracker using neo-6m and sim800l and ESP32

by ninja_tek

2025-06-23


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hfhnf  The SIM800L GSM module and NEO-6M GPS module have different power requirements. Here's a breakdown of their current (ampere) needs:1. SIM800L GSM Module⚠️ Critical Note:The SIM800...
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How to check if a potentiometer is working using multimeter?

by ninja_tek

2025-07-01


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To check the continuity and overall health of a potentiometer using a multimeter, follow these steps:Tools NeededTerminals of a PotentiometerStep-by-Step Test ProcedureAcceptable ResultsCommon Failure...
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Linear DC regulated 0 to 18 volt, 3 Ampere power supply

by ninja_tek

2025-07-27


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I have made  0 to 18 volt linear power supply  Using 12-0-12 power step down transformer
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Light Dimming and ON/OFF using ESP32

by ninja_tek

2025-09-01


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below is a complete, step-by-step circuit connection guide you can follow to wire your ESP32 8-channel AC dimmer + relays + RS-485 + zero-cross. I cover every connection (mains, protection, optos, TRI...
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